Shows error code "E-1" or "E-something", I think "E-4"
YOUR UNIT WKL 4000 CONTROL BOARD HAS THE FOLLOWING FEATURE ON START UP UNIT WILL RUN FOR 30 MINUTES IF IT DOENST BRING THE TEMPERATURE IN THE CELLAR BELOW 70DEGREES IN THAT TIME IT WILL SHUT OFF AND DISPLAY E1, YOU NEED TO UNPLUG UNIT FOR 15 MINUTES(NO LESS THAN THAT) AND THEN PLUG IN AGAIN IT WILL RUN AGAIN FOR ANOTHER 30 MINUTES ABD IF IT DOESNT BRING THE TEMPERATURE BELOW 70 IT WILL SHUT OFF AGAIN.YOU WILL HAVE TO REPEAT THIS CYCLE TILL IT GOES BELOW 70DEGREES (MOST CUSTOMERS WILL HAVE TO DO THIS CYCLE TWICE).ONCE THE UNIT BRINGS THE TEMPERATURE BELOW 70 IT WILL RUN NON STOP TILL IT MEET THE SET COOL POINT.IF YOU REPEAT THIS STEP SEVERAL TIMES AND THE UNIT NEVER BRING THE TEMP BELOW 70 DEGREES THERE HAS TO BE SOMETHING ELSE GOING ON, LIKE A REFRIGERANT LEAK.CHECK THIS LINK FOR THE INSTRUCTIONS THAT EXPLAIN THE FEATURE I TALKED ABOUT AND OTHERS ON THE CONTROL LER OF YOUR UNIT(SENTRY III)http://www.breezaire.com/downloads/sentrymanual.PDF
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